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A 737-300/400/500MAINTENANCE MANUAL
FLOW  FLOW 
FUSE  FUSE 
OVERHEAD  AUTOBRAKE 
CONTROL 
ACCUMULATOR  MODULE  ALT BRAKE 
ISOLATION  SELECTOR VALVE 
VALVE 
ANTISKID  ANTISKID 
SHUTTLE  BRAKE METERING  SHUTTLE 
VALVES  VALVE ASSY  VALVES 
(2 PLACES) 
RIGHT  LEFT 
ALTERNATE  PARKING BRAKE  ALTERNATE 
ANTISKID  SHUTOFF VALVE  OUTBD ANTISKID 
CONTROL VALVE RIGHT NORMAL  FLOW BRAKE  AUTOBRAKE SHUTTLE VALVES  INBD  FLOW BRAKE  VALVE CONTROL LEFT NORMAL 
ANTISKID  FUSES  FUSES  ANTISKID 
CONTROL VALVES  INBD  CONTROL VALVES 
OUTBD
SEE  A 
(TYP) 
SERVICING GAGE  WHEEL WELL 
ACCUMULATOR  AFT BULKHEAD 
STA 727 

BRAKE PRESS TRANSMITTER
BL 0
VIEW LOOKING AFT
NORMAL ANTISKID VALVES SHOWN) INSTALLATION (RIGHT VALVE  MOUNTING BOLT  UNION  ELECTRICAL CONNECTOR
A 
Normal Antiskid Valve Installation 
Figure 401 

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
FLOW FLOW FUSE FUSE
OVERHEAD  AUTOBRAKE CONTROL MODULE
ACCUMULATOR ALT BRAKE
ISOLATION SELECTOR VALVE
VALVE
ANTISKID ANTISKIDSHUTTLE BRAKE METERING SHUTTLE VALVES VALVE ASSEMBLY VALVES
(2 LOCATIONS)
RIGHT  LEFT  LEFT 
ALTERNATE  PARKING BRAKE  ANTISKID  ALTERNATE 
ANTISKID  SHUTOFF VALVE  OUTBD  CONTROL  ANTISKID 
VALVE CONTROL ASEE  BRAKE FLOW  VALVES SHUTTLE AUTOBRAKE  INBD  BRAKE VALVES FLOW  CONTROL VALVE 
FUSES  FUSES 
INBD  RIGHT ANTISKID
OUTBD  CONTROL VALVES 

SERVICING GAGE
WHEEL WELL ACCUMULATOR AFT BULKHEAD
STA 727
BRAKE PRESS TRANSMITTER
BL 0
VIEW IN THE AFT DIRECTION
MOUNTING
ANTISKID VALVE BOLTS
RETURN PORT
VALVE ASSEMBLY
UNIONS
HYDRAULIC LINES
ELECTRICAL
CONNECTOR
CHECK MOUNTING VALVE BOLTS
RIGHT VALVE SHOWN, LEFT SIDE SIMILAR A
Alternate Antiskid Valve Installation Figure 402
B83437
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 844-031
 (9)  
Close all the circuit breakers of the landing gear on the P6 panel.

 S 844-032

 (10)
 Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P6 Panel 1) AUTOSLAT No. 1 AC. (On airplanes with the Digital Stall

 Warning and the Autoslat Computers) 2) AUTOSLAT No. 1 DC. 3) AUTOSLAT No. 2 AC. (On airplanes with the Digital Stall
 Warning and the Autoslat Computers) 4) AUTOSLAT No. 2 DC.
 S 844-033
 (11)
 Put the ANTISKID switch in the on position.

 F.
Left Outboard Antiskid Valve Test

 S 724-034
 (1)  
Move the WHEEL SELECT switch on the antiskid control unit to the LO position and push the VALVE button.

 S 724-035

 (2)  
Make sure the center green light comes on.

 S 724-036

 (3)  
Push and hold the VALVE and the LW buttons.

 S 724-037

 (4)  
Make sure that the right green light comes on and the left outboard brake releases.

 S 724-038

 (5)  
Release the buttons and move the WHEEL SELECT switch to the OFF position.

 G.
Left Inboard Antiskid Valve Test
　
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